1 Mar
2018
1 Mar
'18
11:11 p.m.
- +----------------+----------------+----------------+----------------+
- | gref_directory | 24
- +----------------+----------------+----------------+----------------+
- | reserved | 28
- +----------------+----------------+----------------+----------------+
- |//////////////////////////////////|
- | period_sz | 28
- +----------------+----------------+----------------+----------------+
- | reserved | 32
- +----------------+----------------+----------------+----------------+
@@ -578,6 +616,14 @@
- pcm_channels - uint8_t, number of channels of this stream,
- [channels-min; channels-max]
- buffer_sz - uint32_t, buffer size to be allocated, octets
- period_sz - uint32_t, recommended event period size, octets
- This is the recommended (hint) value of the period at which frontend would
- like to receive XENSND_EVT_CUR_POS notifications from the backend when
- stream position advances during playback/capture.
- It shows how many octets are expected to be played/captured before
- sending such an event.
- If set to 0 no XENSND_EVT_CUR_POS events are sent by the backend.
I would gate this based on the version. That is if version 0 then this field does not exist.
- gref_directory - grant_ref_t, a reference to the first shared page
- describing shared buffer references. At least one page exists. If shared
- buffer size (buffer_sz) exceeds what can be addressed by this single page,
@@ -592,6 +638,7 @@ struct xensnd_open_req { uint16_t reserved; uint32_t buffer_sz; grant_ref_t gref_directory;
- uint32_t period_sz;
The same here. Just put a comment mentioning the version part.